Question
________ act as 'digestive bags.
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No. of Protons
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No. of Neutrons
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Mass number
|
Atomic number
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No. of electrons
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Symbol
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$11$
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$12$
|
$............$
|
$............$
|
$............$
|
$............$
|
|
Number of protons
|
Number of neutrons
|
Mass number
|
Atomic number
|
Number of electrons
|
Valency
|
|
$11$
|
$12$
|
$..............$
|
$..............$
|
$..............$
|
$..............$
|